1-Turn on electronics and transmitter.
2-Set servo horn (using sub trim) to run parallel to chassis centerline.
3-Set preload on throttle spring to keep carb shut at idle.
4-Set collar on back side of throttle with about 0.5 mm gap
5-Set brake spring tension collars with about 1 mm gap between the end of the spring and the collar when you pull the cams toward the servo to the point where the brakes engage. This will give you some dead band so the brakes aren't engaged at neutral.